Phalaenopsis orchid plant named ‘Misty Snow’

ABSTRACT

A new and distinct  Phalaenopsis  plant named ‘Misty Snow’ particularly characterized by flowers which are white with some red and yellow in the labellum; plants which may be propagated economically and uniformly using tissue culture; plants which produce more than one inflorescence; long and sturdy inflorescences; and relatively short, dark-green foliage.

Latin name of the genus and species of the plant claimed: Phalaenopsishybrida.

Variety denomination: ‘Misty Snow’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar ofPhalaenopsis plant, botanically known as Phalaenopsis of the Orchidaceaefamily, and hereinafter referred to by the cultivar name ‘Misty Snow’.

Phalaenopsis comprises a genus of about 55 species of herbaceousperennials many of which, or the hybrids thereof, are suitable forcultivation in the home or greenhouse. Phalaenopsis is predominantlyepiphytic or rock-dwelling, and is native to tropical Asia, the MalayArchipelago, and Oceania. The species typically has 2-ranked, fleshy,oblong or elliptic leaves affixed to a short central stem (monopodialgrowth), which vary in size from 5 to 8 inches to over 2 feet. Theleaves may be entirely green or mottled with silver grey.

Phalaenopsis orchids, often referred to as ‘Moth Orchids’ in thehorticultural trade, are frequently used to furnish cut flowers for theflorist trade or sold as flowering potted-plants for home orinteriorscape.

Phalaenopsis produces upright or pendent lateral racemes, often withmany showy flowers which open in succession beginning with thelowermost. The flowers possess three sepals and three petals; thelateral ones being alike. The lowermost petal, called the labellum, isthree-lobed and is often more brightly-colored than the other flowersegments. Flower colors include various shades of pink, white, yellowand red-brown.

Phalaenopsis orchids are typically propagated from seeds. Asexualpropagation of Phalaenopsis is often done from off-shoots whichfrequently arise from the lower bracts of the inflorescence. Theresulting plants are detached from the mother plant and may be plantedin a suitable substrate.

The new Phalaenopsis ‘Misty Snow’ is a product of a controlled breedingprogram conducted by the inventor, René Schoone, in Strengweg,Heemskerk, The Netherlands. The objective of the breeding program was todevelop a new Phalaenopsis cultivar particularly characterized by itsattractive and unique colored flowers, economical propagation via tissueculture, rapid growth, and a plant dimension suitable for packaging andshipping to the market.

The new Phalaenopsis ‘Misty Snow’ originated from a cross made by theinventor in 2004 in Strengweg, Heemskerk, The Netherlands. The female orseed parent is the Phalaenopsis cultivar designated ‘Southern Snow’,unpatented. The male or pollen parent is the Phalaenopsis cultivardesignated ‘Misty Mountain’, unpatented. The new Phalaenopsis ‘MistySnow’ was discovered and selected by the inventor as a single floweringplant within the progeny of the stated cross in a controlled environmentin 2011 in Strengweg, Heemskerk, The Netherlands.

Asexual reproduction of the new Phalaenopsis cultivar by tissue culture(mericloning) was first performed in July, 2012 in Cieweg 13, Heemskerk,The Netherlands, and has demonstrated that the combination ofcharacteristics as herein disclosed for the new cultivar are firmlyfixed and retained through successive generations of asexualreproduction. The new cultivar asexually reproduces true-to-type.

BRIEF DESCRIPTION OF THE INVENTION

The following traits have been repeatedly observed and are determined tobe unique characteristics of ‘Misty Snow’, which in combinationdistinguish this Phalaenopsis as a new and distinct cultivar:

-   -   1. flowers which are white with some red and yellow in the        labellum    -   2. plant produces more than one inflorescence;    -   3. plants may be propagated economically and uniformly using        tissue culture;    -   4. inflorescences are long and sturdy; and    -   5. relatively short, dark-green foliage.

In comparison with the parental cultivars of ‘Misty Snow’, the flowersof the female parent ‘Southern Snow’ are white with some yellow and redin the labellum and about 12 cm in size, the flowers of the male parent‘Misty Mountain’ are white with a yellow labellum and about 10 cm insize, whereas the flowers of ‘Misty Snow’ are white with somegreen/yellow in the labellum and about 11 cm in size.

Presently, the commercial cultivar to which ‘Misty Snow’ can bemeaningfully compared is ‘FLOR179934’. The flowers of ‘FLOR179934’ areabout 10 cm in size, whereas the flowers of ‘Misty Snow’ are about 11 cmin size. Also the labellum of ‘FLOR179934’ has more yellow than thelabellum of ‘Misty Snow’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of thenew Phalaenopsis ‘Misty Snow’ showing the colors as true as isreasonably possible with colored reproductions of this type. Colors inthe photographs may differ slightly from the color values cited in thedetailed botanical description, which accurately describe the color of‘Misty Snow’.

FIG. 1 shows a side view perspective of a typical flowering plant of‘Misty Snow’ in a 12 cm pot, at 16 months of age.

FIG. 2 shows a close-up view of the typical flower of ‘Misty Snow’.

FIG. 3 shows a close-up view of the typical leaves of ‘Misty Snow’.

DETAILED BOTANICAL DESCRIPTION

The new Phalaenopsis cultivar ‘Misty Snow’ has not been observed underall possible environmental conditions. The phenotype of the new cultivarmay vary with variations in environment such as temperature, lightintensity, and day length without any change in the genotype of theplant.

The aforementioned photographs, together with the followingobservations, measurements and values describe plants of ‘Misty Snow’ asgrown in a greenhouse in Strengweg, Heemskerk, The Netherlands, underconditions which closely approximate those generally used in commercialpractice. Initially, the ideal temperature to grow plants of ‘MistySnow’ is 27° C. during the day and at night. Then, during the floweringphase of ‘Misty Snow’, the ideal growing temperature is 20-22° C. duringthe day and 18° C. at night. Light levels for growing ‘Misty Snow’ are aminimum of 5,000 lux and a maximum of 10,000 lux. A balanced fertilizerwith level of 200 ppm N, 87 ppm P, 168 ppm K is applied. Duration ofgrowth of ‘Misty Snow’ from potting size is between 10 and 14 months.

Color references are made to The Royal Horticultural Society ColourChart (R.H.S.), 2007 edition, except where general colors of ordinarysignificance are used. Color values were taken under daylight conditionsat approximately noon in Zaandammerweg, Assendelft, The Netherlands. Theage of the ‘Misty Snow’ plants described is 12 months after potting.

-   Classification:    -   -   Botanical.—Phalaenopsis hybrida.-   Parentage:    -   -   Female or seed parent.—Phalaenopsis cultivar designated            ‘Southern Snow’, unpatented.        -   Male or pollen parent.—Phalaenopsis cultivar designated            ‘Misty Mountain’, unpatented.-   Propagation:    -   -   Type.—Tissue culture.        -   Rooting habit and description.—Fleshy; approximately 3 mm-6            mm wide and greyed/green in color (RHS 190A); freely            branching. It takes 12 weeks for plants growing in tissue            culture to initiate roots.-   Plant:    -   -   Size at maturity.—Height (from bottom of pot to highest            flower): about 60 cm. Spread: about 50 cm.        -   Growth habit.—Standard; green leaves (RHS N137A) and a            relatively normal raceme.        -   Vigor.—Moderate.        -   Crop time.—Following asexual propagation, at about 26 weeks            2 leaves appear; at about 30 weeks 3-4 leaves appear; after            a cold treatment of about 4-8 weeks at a temperature of            about 19° C. about 1-2 racemes with flowers appear.-   Foliage:    -   -   Quantity per plant.—About 6-8 leaves are produced before            flowering.        -   Arrangement and attachment.—Alternate, clasping.        -   Overall shape of leaf.—Oval; the tip is blunt and            asymmetric.        -   Texture (upper & underside).—Smooth and leathery.        -   Pubescence.—None.        -   Mature leaf length.—About 22 cm.        -   Mature leaf width.—About 8.5 cm.        -   Mature leaf thickness.—About 2 mm.        -   Mature leaf color.—Upper side: green (RHS N137A). Under            side: green (RHS 137B and RHS 137C).        -   Leaf base.—Acute.        -   Margin.—Entire.        -   Venation.—Pattern: parallel. Color of midvein: upper side:            green (RHS 139A). under side: green (RHS 137B).-   Inflorescence description:    -   -   Appearance.—Upright to slightly pendant, racemose            inflorescence with bilaterally symmetrical flowers that open            in succession beginning with the lowermost flower.-   Raceme:    -   -   Quantity per plant.—About 2.        -   Number of flowers per raceme.—About 10.        -   Length.—About 35 cm.        -   Diameter.—About 5 mm.-   Peduncle:    -   -   Length.—About 25 cm.        -   Diameter.—About 4 mm.        -   Strength.—Strong.        -   Aspect.—Upright.        -   Texture.—Glabrous and smooth.        -   Color.—Green (RHS 137B) and yellow/green (RHS 144A) with            brown (RHS 200A).        -   Buds.—Height (from base to tip): about 25 mm. Diameter (at            midpoint): about 19 mm. Shape: oval with a bump. Color:            yellow/green (RHS 145A and RHS 145C) with a red/purple haze            (RHS 70A and RHS 71A). Orientation: same as flowers (forward            facing).        -   Flowering time.—For an untreated plant (flowering plant that            has not undergone cold-treatment where the plant grows at a            temperature of 18° C. to 19° C. for about 4 to 8 weeks after            a period of about 30 weeks at a temperature of 25° C.), 1-2            racemes appear with flower buds and flowers. First flowers            can be expected approximately 4 to 6 months after planting a            plant with a leaf diameter of 3 to 5 cm. Flowers persistent.        -   Flowering longevity.—On the plant: about 4 to 6 months;            lastingness of cut flowers: has not been observed.        -   Fragrance.—No fragrance.        -   Flower.—Rate of opening: Flowers fully opened about 2 to 3            days after petal and sepal separation. Orientation at            opening: slanted upward and outward. Shape: Typical shape of            Phalaenopsis; see FIG. 2. Size (of single bloom): Height:            about 95 mm. Diameter: about 110 mm. Quantity and            arrangement: three petals and three sepals that are            trimerous, overlapping and arranged in 2 whorls. Petals are            more pronounced than sepals.        -   Petals.—Arrangement: Inner whorl comprises 3 petals: 2            lateral petals and a labellum. 2 lateral petals: Overall            shape: broadly ovate and weakly cupped. Apex: round. Margin:            entire and weakly undulate. Base: broadly ovate. Length:            about 60 mm. Width: about 50 mm. Texture: Upper surface:            smooth and satiny. Under surface: smooth and satiny. Color            (when fully opened): upper side: white (RHS NN155D). Under            side: white (RHS NN155D). Labellum: Overall shape: 3-lobed            with 2 prominent callosities at central junction of the            lateral lobes and base of the midlobe. Lateral lobes of            labellum fold upward about the column; the midlobe extends            forward and is terminated by 2 appendages at the apex.            Lateral lobes of the labellum are ovate in shape while the            midlobe is triangular with a bump and a rib on it. Margin:            entire and weakly undulate. Apex of the midlobe and lateral            lobes: oval. Length midlobe: about 25 mm. Width midlobe (not            flattened): about 25 mm. Length lateral lobe: about 18 mm.            Width lateral lobe (not flattened): about 17 mm. Depth of            tube created by lateral lobes of labellum: about 18 mm.            Texture: Upper & under surface: smooth and satiny. Color            (when fully opened): Midlobe, upper side: Main color is            white (RHS NN155D). At the base red/purple (RHS 71A) with            yellow/green (RHS 1B). Under side: Main color is white (RHS            NN155D). At the base red/purple (RHS 71A) with some            yellow/green (RHS 1B). Lateral lobes, upper side: Main color            is white (RHS NN155D). At the base red/purple stripes (RHS            59A). At the lower edge some red/purple (RHS 59A) with            green/yellow (RHS 1B). Under side: Main color is white (RHS            NN155D). Lower edges some red/purple (RHS 59A) with            green/yellow (RHS 1B). Cirrhi: about 20 mm. color: white            (RHS NN155D) long and curled. Pestle (Callosities): Length:            about 8 mm. Width (not flattened): about 8 mm. Color: white            (RHS NN155D) with red/purple stripes/spots (RHS 59A) and a            yellow haze (RHS 5A).        -   Sepals.—Arrangement: Outer whorl comprises 3 sepals, one            dorsal and two lateral sepals. Overall shape: elliptical and            weakly cupped. Margin: entire and weakly undulate. Length:            about 50 mm. Width: about 30 mm. Apex: oval. Texture: Upper            and under surface: smooth and satiny. Color (when fully            opened): Upper side, dorsal: White (RHS NN155D) with a            yellow/green haze (RHS 145B). Lateral: white (RHS N155D)            with a yellow/green haze (RHS 145B) and at the base some            red/purple spots (RHS 70A). Under side, dorsal: white (RHS            NN155D) with a yellow/green (RHS 145) and red/purple haze            (RHS 70A). Lateral: white (RHS NN155D) with a yellow/green            haze (RHS 145B).        -   Pedicel.—Length: about 4.5 cm. Diameter: about 4 mm.            Texture: glabrous and smooth. Color: yellow/green (RHS 145C            and RHS 145D) with a red/purple haze (RHS 70A) which runs            into yellow/green (RHS 145A and RHS 145B).-   Reproductive organs:    -   -   Arrangement.—The stamens, style and stigmas are fused into a            single, short structure called the column, possessing one            terminal anther with pollen grains united into a pollinia,            which are covered by an anther cap. The stigma is located            under the column behind the pollinia. The ovary is inferior            with three carpels present. The plant has not produced seed.        -   Column.—Length: about 10 mm. Diameter: about 3 mm. Color:            white (RHS NN155D) with haze yellow/green (RHS 145D).        -   Pollinia.—Quantity: two. Diameter: about 2 mm. Color:            yellow/orange (RHS 23A).        -   Ovary.—Length: about 4 mm. Diameter: about 3 mm. Color:            white (RHS NN155D).-   Disease/pest resistance/susceptibility: No specific resistance or    susceptibility observed.-   Temperature tolerance: Tolerant to a low temperature of about 15° C.    and to a high temperature about 30° C.

What is claimed is:
 1. A new and distinct Phalaenopsis plant named‘Misty Snow’, as illustrated and described herein.